TS EAMCET 2023 (Online) 12th May Evening Shift | Waves Question 32 | Physics

An observer moves towards a stationary source of sound with a speed $\frac{1}{5}$ th that of sound. The frequency of ${ }^{\text {th }}$ sound emitted by the source of $f$. The apparent frequency recorded by the observer is

$1.2 f$

$f$

$0.8 f$

$2 f$

TS EAMCET 2023 (Online) 12th May Morning Shift

MCQ (Single Correct Answer)

-0

A heavy uniform rope is suspended vertically from a ceiling and is in equilibrium. A pulse is generated at the bottom end of the rope as shown. As the pulse travels up the rope, its acceleration at any instant is ( $g$ is acceleration due to gravity TS EAMCET 2023 (Online) 12th May Morning Shift Physics - Waves Question 33 English

TS EAMCET 2023 (Online) 12th May Morning Shift Physics - Waves Question 33 English

constant and equal to $\frac{g}{2}$

variable but equal to $\frac{g}{2}$ when the pulse is exactly at the middle of the string

Constant and equal to g

variable but equal to $g$ when the pulse is exactly at the middle of the string

TS EAMCET 2023 (Online) 12th May Morning Shift

MCQ (Single Correct Answer)

-0

A wave is given by the equation $y=(0.02) \sin (\pi x-8 \pi /$ then the velocity of the wave is $(y$ and $x$ are in metre and $t$ is in second)

$16 \mathrm{~ms}^{-1}$

$2 \mathrm{~ms}^{-1}$

$8 \mathrm{~ms}^{-1}$

$18 \mathrm{~ms}^{-1}$

TS EAMCET 2022 (Online) 20th July Evening Shift

MCQ (Single Correct Answer)

-0

A cylindrical tube open at both ends has a fundamental frequency $f$ in air. The tube is dipped vertically in water, so that half of it is in water. The new fundamental frequency is

$f$

$\frac{f}{2}$

$2 f$

$4 f$

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